General Knowledge - Environmental Studies
Exam Duration: 60 Mins Total Questions : 30
Residence time of water molecule in the ocean is:
- (a)
3.5 years
- (b)
3.5 million years
- (c)
35 years
- (d)
35000 years
Which of the following is NOT an ingredient for preparing Dal?
- (a)
Pulses
- (b)
Kerosene
- (c)
Oil or Ghee
- (d)
Salt
Materials required to prepare a food item are called
- (a)
Nutrients
- (b)
Ingredients
- (c)
Nourishments
- (d)
Minerals
Which of the following problems is not created by noise pollution?
- (a)
Diarrhoea
- (b)
Hypertension
- (c)
Deafness
- (d)
Irritation
Medicine of quinine is provided by
- (a)
Eucalyptus plant
- (b)
aconite plant
- (c)
cinchona plant
- (d)
money plant
71% of earth surface is covered with:
- (a)
land
- (b)
air
- (c)
water
- (d)
coal
Mucus helps Frog in forming
- (a)
Thick skin
- (b)
Dry skin
- (c)
Smooth skin
- (d)
Moist skin
What animals sleeps nearly all day long?
- (a)
Sloth
- (b)
Lion
- (c)
Elephant
- (d)
None of these
Name the substance whose accumulation in pelicans of Lake Michigan led to the formation of thin shells of their eggs.
- (a)
CFC
- (b)
PAN
- (c)
DDT
- (d)
PAC
Which one of the following statements regarding EI-NINO is NOT true?
- (a)
It is an extension of equatorial current towards the western coast of South America.
- (b)
It is an occasional warm current leading to an increase of about 10o C in subsurface water temperature.
- (c)
It develops as temporary replacement of usual cold Peruvian Current.
- (d)
It causes an increase in plankton thriving in cold Peruvian current.
Which one of the following animals shows discontinuous distribution?
- (a)
Green muscles
- (b)
Bats
- (c)
Lung fishes
- (d)
Pacific salmons
When water enters the cell, over one of the pressures is exerted on cell wall
- (a)
Osmotic pressure
- (b)
Sunaction pressure
- (c)
Turgor pressure
- (d)
Root pressure
Osmosis is the diffusion of
- (a)
Water
- (b)
Solute particles
- (c)
Gases
- (d)
Energy
A cell increase in volume when it is placed to
- (a)
Hypertonic solution
- (b)
Hypotonic solution
- (c)
Isotonic solution
- (d)
None of these
Endosmosis occurs when the plant cell is placed in
- (a)
Strong solution
- (b)
Isotonic solution
- (c)
Hypotonic solution
- (d)
Hypertonic solution
Cell becomes turgid because of
- (a)
Plasmolysis
- (b)
Exosmosis
- (c)
Endosmosis
- (d)
Diffusion
The hydrostatic pressure which is developed due to accumulation of water absorbed by roots is called
- (a)
Turgor pressure
- (b)
Wall pressure
- (c)
Root pressure
- (d)
Diffusion pressure
Maximum root pressure is observed when
- (a)
Transpiration and absorption are very low
- (b)
Transpiration and absorption very high
- (c)
Transpiration is high and absorption is low
- (d)
Transpiration is low and absorption is high
Name the process in which a harmful chemical enters the food chain and gets concentrated at each level in the food chain.
- (a)
Concentration
- (b)
biomagnification
- (c)
expansion
- (d)
pollution
Root pressure is due to
- (a)
Active absorption
- (b)
Passive absorption
- (c)
Increased turgidity
- (d)
Increased transpiration
The loss of water in the form of water droplets is called
- (a)
Transpiration
- (b)
Guttation
- (c)
Evaporation
- (d)
Bleeding
If a piece of metal weighs 10.2g in air, 8.6g in water and 7.8g in another liquid, then what will be the specific gravity of the liquid?
- (a)
1.0
- (b)
1.5
- (c)
2.0
- (d)
3.0
The geometric mean of the numbers 2, 4, 8, 16, 32 is:
- (a)
12
- (b)
16
- (c)
8
- (d)
32
The chemical that is used to ripen mangoes is:
- (a)
Calcium sulphide
- (b)
Calcium carbide
- (c)
Calcium carbonate
- (d)
Calcium chloride
Land use pattern is usually studied by the following technique:
- (a)
Aerial photography
- (b)
Satellite imaging
- (c)
Satellite imaging and G.I.S.
- (d)
Satellite imaging, G.I.S. and G.P.S.
Uric acid is the chief nitrogenous wastes in
- (a)
frog
- (b)
Birds
- (c)
Fishes
- (d)
Man
Guano refers to
- (a)
Ureotelic flightless bird
- (b)
Bird droppings rich in guanine
- (c)
Extinct species of bird
- (d)
Uric acid
Stomata opens because the guard cells have --
- (a)
Outer thin walls
- (b)
Chloroplast
- (c)
Inner thick walls
- (d)
Kidney shape
The cells which are closely associated and intercating with guard cells are
- (a)
Transfussion tissue
- (b)
Complementary cells
- (c)
Subsidiary cells
- (d)
Hypodermal cells
Which of the following is considered as 'body building foods'?
- (a)
Proteins
- (b)
Vitamins
- (c)
Fats
- (d)
Carbohydrates